13611972001 has 8 divisors (see below), whose sum is σ = 14790598400. Its totient is φ = 12479566320.

The previous prime is 13611971983. The next prime is 13611972041. The reversal of 13611972001 is 10027911631.

13611972001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13611972001 - 2⁵ = 13611971969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13611972041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11554566 + ... + 11555743.

It is an arithmetic number, because the mean of its divisors is an integer number (1848824800).

Almost surely, 2^13611972001 is an apocalyptic number.

It is an amenable number.

13611972001 is a deficient number, since it is larger than the sum of its proper divisors (1178626399).

13611972001 is a wasteful number, since it uses less digits than its factorization.

13611972001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23110359.

The product of its (nonzero) digits is 2268, while the sum is 31.

The spelling of 13611972001 in words is "thirteen billion, six hundred eleven million, nine hundred seventy-two thousand, one".